一、错误描述（Error description）
R升级版本时，在Rstudio中切换到最新版本后，重启Rstudio时会遇到bug：Error in tools::startDynamicHelp() : internet routines cannot be loaded（When upgrade the base R condition, for example R-4.12, you will got a bug, Error in tools::startDynamicHelp() : internet routines cannot be loaded）
1.进入Rstudio后，看到如下错误提示(you will sell error when got into Rstudio)
Error in tools::startDynamicHelp() : internet routines cannot be loaded
二、问题原因(problem explain)
1.表面原因(surface explain)
~\modules\x64\internet.dll文件缺失，安装过程中丢失了 (~\modules\x64\internet.dll lost in install process)
2.深层原因(deep explain)
？？？问了公司IT同事，说是没有限制，因此暂时不确定深层次原因( I ask IT, who don’t limit, so can’t determine the cause)
三、解决方案(solution)
1.修改安装路径(modify install path)
安装R语言时把默认安装路径C:\Program Files\R修改为C:\Users\sugs\Documents\R，sugs是指电脑用户名，每个人不一样的
(modify the default install path ‘C:\Program Files\R’ to ‘C:\Users\sugs\Documents\R’, ‘C:\Program Files\R’ demand administrator privileges, but ‘C:\Users\sugs\Documents\R’ does not demand. )
2.复制确实文件(copy ~\modules\x64\internet.dll from the old version to new version, ~\modules\x64\ has two files, internet.dll, lapack.dll)
把旧版~\modules\x64\internet.dll 复制到新版~\modules\x64\路径下面
modules\x64路径应该有两个文件，分别是：internet.dll, lapack.dll
3.重启Rstudio(Reopen Rstudio)
错误解决（The error has been solved）